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Dr. Michael Plotzke is a senior health economist with expertise in the area of Medicare payment policy, the organization of healthcare providers and quality measurement. His work typically involves the analysis of large datasets such as Medicare claims, assessment and enrollment data. Dr. Plotzke serves as principal investigator for multiple projects with the Centers for Medicare & Medicaid Services.  On the “Home Health Prospective Payment System and Hospice: Analysis Support and Monitoring” project, Dr. Plotzke leads a team of researchers in analyzing trends in Medicare hospice and home health usage and constructing large-scale payment reform options for both benefits.  Dr. Plotzke also leads the “Evaluation of the Medicare Care Choices Model” project that evaluates a new payment model for end-of-life care that is being tested with 141 hospice providers.  This project involves analysis of existing administrative data and collection of new data through surveys of caregivers, surveys of hospice providers and in-depth case studies of hospice providers participating in the model.

Lauren Dunton is a Principal Associate with almost two decades of experience as a social science researcher evaluating programs and analyzing policies relating to homelessness, housing, workforce, and education across the country. As a seasoned Project Director, Ms. Dunton has led complex research and technical assistance projects for a range of federal agencies, state governments, and national foundation and philanthropic organizations. She has expertise in qualitative and mixed-method data collection and analysis, leading project teams, and authoring reports. 

Kate Greene is a project director with extensive experience in planning and implementing complex donor-funded health programs in health systems, global health security, human resources for health, and HIV/AIDS. Her diverse experience includes managing and overseeing health professional regulation and accreditation activities in Cote d’Ivoire, Eswatini, Haiti, and Jordan; designing and managing Ebola preparedness efforts in Guinea; and providing technical oversight to Global Health Security Agenda (GHSA) initiatives in Cote d’Ivoire, including the development of the country’s first National Health Security Plan.

Meghan Lynch, Sc.D., is an accomplished manager of cross-disciplinary teams, with 20 years of experience specializing in toxicology and human health risk assessment. She is skilled at interpreting, evaluating, and communicating toxicological and epidemiological information for hazardous substances. She has managed a variety of projects for ATSDR, OSHA, EPA, and nonprofit agencies. These include leading tasks requiring the synthesis of toxicological information and risk assessments, and performing both probabilistic and benchmark dose modeling. The results of these projects have been subject to peer review. Lynch has also provided memorandums and analyses supporting risk assessments and addressing industry comments, which have been used to support plaintiffs in litigation for chemical contaminants.

Dr. Lisa McDonald is a natural resource economist with more than 25 years of experience in environmental compliance and policy.  She has led the development of both economic impact tools used to evaluate large investment decisions and conceptual models to evaluate benefits of restoration projects. Dr. McDonald also has led or completed several socioeconomic impact analyses for various projects, including evaluating changes in land use policies, watershed management studies, restoration projects, and energy and infrastructure development. She often applies various economic analysis techniques in these studies, including economic impact analysis, benefit-cost analysis, financial modeling, and market and non-market valuation.

Douglas W. Elmendorf, Ph.D., is Lucius N. Littauer Professor of Public Policy at Harvard University’s John F. Kennedy School of Government. He served as Dean of the Kennedy School from 2016 to 2024 and was previously Director of the Congressional Budget Office from 2009 to 2015.Elmendorf has held senior economic positions with the Federal Reserve Board, the President’s Council of Economic Advisers, and the Treasury Department, where he was Deputy Assistant Secretary for Economic Policy. He is a widely respected economist who has deep knowledge of many of Abt’s core research areas, including health care policy and approaches to increasing economic security.Elmendorf is the author of more than 30 publications and has testified before Congress on economic issues 50 times since 2005. 

Olga Zues, a health-system and financing specialist, has 20 years of experience in international development. She focuses on the design and implementation of comprehensive reform strategies to strengthen health systems and public finance management. Her expertise includes benefits design to move towards universal health coverage, arrangements to support efficiency gains and service delivery improvements, innovative payment mechanisms, sustainability strategies, and institutional development. She has worked with the World Health Organisation (WHO), the World Bank, the Global Fund to Fight AIDS, Tuberculosis and Malaria, the U.S. Agency for International Development, the UK Department for International Development – now the Foreign, Commonwealth and Development Office – and numerous ministries of health, finance, justice, and education.

Sarah J. Shoemaker-Hunt has more than 15 years of experience as a health services researcher and implementation scientist. As an experienced pharmacist, she brings a practice-informed lens to her role conducting mixed-methods studies and evaluations and delivering technical assistance and quality improvement projects for federal health agencies. They include the Agency for Healthcare Research and Quality (AHRQ), Centers for Disease Control and Prevention (CDC). Clients also include non-governmental organizations. Sarah is the Abt client account lead for AHRQ.

Meghan Henry is a social science researcher with over 15 years of experience in public policy and program evaluation, specifically in the fields of housing and homelessness and the intersection of homelessness and education. Henry has extensive experience leading evaluations, including large data collection efforts, conducting qualitative data collection, data analysis, and outcome evaluations. As project director of the U.S. Department of Housing and Urban Development’s (HUD) Annual Homeless Assessment Report (AHAR) to Congress, she has considerable experience synthesizing large amounts of information to make the data accessible and actionable for federal, state, local, and philanthropic clients.